The Composition Of The Transformer

Transformer components include body (iron core, winding, insulation, lead), transformer oil, oil tank and cooling device, voltage regulating device, protection device (moisture absorber, safety air duct, gas relay, oil conservator and temperature measuring device, etc.) ) And outlet casing. Specific composition and function: [1]

(1) Iron core. The iron core is the main magnetic circuit part of the transformer. It is usually made of hot-rolled or cold-rolled silicon steel sheets with high silicon content, thicknesses of 0.35mm, 0.3mm, 0.27mm, and insulating paint coated on the surface. The iron core is divided into two parts: an iron core column and a cross piece. The iron core column is covered with windings; the cross piece is used to close the magnetic circuit. [1] 

(2) Winding. The winding is the circuit part of the transformer, which is wound with double-filament insulated flat wire or enameled round wire. The basic principle of the transformer is the principle of electromagnetic induction. Now take a single-phase dual-winding transformer as an example to illustrate its basic working principle: when a voltage U1 is applied to the primary winding, a current I1 flows, and alternating magnetic flux is generated in the iron core O1, these magnetic fluxes are called the main magnetic flux. Under its action, the windings on both sides respectively induce electric potential, and finally drive the transformer control device.